| 摘要 |
A catheter apparatus is provided for reducing blood clotting in connection with hemodialysis treatment. The catheter apparatus can comprise a first conduit defining an arterial lumen and a second conduit defining a venous lumen. Large staggered apertures can be provided in side walls of the conduits with at least one of the apertures having a cross-sectional area equal or greater than a cross-sectional area of one of the lumens. The catheter apparatus can further include first and second removable obturators adapted for axial insertion into the conduits and for occluding the apertures while so inserted. Advantageously, the obturators can wipe the apertures during removal, causing blood clots incident on the apertures to be dislodged from the apertures. Related methods for using the catheter apparatus in performing hemodialysis treatment are also provided. |
